Kagaku na Yatsura

Kagaku na Yatsura (カガクなヤツら) is a Japanese manga series written and illustrated by Hideaki Yoshikawa. It was serialized in Akita Shoten's seinen manga magazine Champion Red Ichigo from February 2010 to December 2013, with its chapters collected in six tankōbon volumes. An original video animation (OVA), produced by Hoods Entertainment and directed by Hiraku Kaneko, was released in February 2013.

Characters

 * Haruki Komaba (駒場 遥希)
 * Haruki is high school boy with two eccentric girl friends. He gets involved in erotic troubles caused by the two as they try to get him to join their respective clubs.
 * Haruki is high school boy with two eccentric girl friends. He gets involved in erotic troubles caused by the two as they try to get him to join their respective clubs.


 * Touko Hizuki (緋月 透子)
 * Touko is the older sister of Ayana. She can become invisible at will. She becomes the nurse of the school that Ayana, Airi, and Haruki attend.
 * Touko is the older sister of Ayana. She can become invisible at will. She becomes the nurse of the school that Ayana, Airi, and Haruki attend.


 * Airi Kuze (久世 愛莉)
 * Airi is an eccentric half-cyborg girl and friends with Haruki Komaba. She views Ayana as her rival. She is the head of the Technological Science Club.
 * Airi is an eccentric half-cyborg girl and friends with Haruki Komaba. She views Ayana as her rival. She is the head of the Technological Science Club.


 * Ayana Hizuki (緋月 綾奈)
 * Ayana is an experiment created by her "mother," a woman who worked in a genetics lab experimenting with splicing human genes with various animals. After hundreds of failures, the first success came out of the combination of a random dog breed and Ayana's mother's own genes. Luckily, Ayana's mother had some sense of kindness, and as soon as Ayana was old enough to be out in the world, Ayana's mother left the little hybrid in the care of her sister. She charged Touko with trying to give Ayana the closest thing to a normal life she can. Ayana told people she had a rare condition, and luckily, they seemed to accept her as a fellow student. She is the head of the Chemical Science Club.
 * Ayana is an experiment created by her "mother," a woman who worked in a genetics lab experimenting with splicing human genes with various animals. After hundreds of failures, the first success came out of the combination of a random dog breed and Ayana's mother's own genes. Luckily, Ayana's mother had some sense of kindness, and as soon as Ayana was old enough to be out in the world, Ayana's mother left the little hybrid in the care of her sister. She charged Touko with trying to give Ayana the closest thing to a normal life she can. Ayana told people she had a rare condition, and luckily, they seemed to accept her as a fellow student. She is the head of the Chemical Science Club.

Manga
Written and illustrated by Hideaki Yoshikawa, Kagaku na Yatsura was serialized in Akita Shoten's seinen manga magazine Champion Red Ichigo from February 5, 2010, to December 5, 2013. Akita Shoten collected its chapters in six tankōbon volumes, released from March 20, 2011, to February 20, 2014.

Original video animation
An original video animation (OVA) was bundled with the limited edition of the manga's fourth volume, released on February 20, 2013. It was produced by Hoods Entertainment, directed by Hiraku Kaneko, with screenplay by Katsuhiko Takayama, and character designs by Masaya Nozaki.